Impeovement d



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IMPROVEMENT IN PETERS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that LrJUvSTUiS DOERING, Vof Philadelphia, Pennsylvania, have invented certain improvements in Filters; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying-drawing,,and to the letters of reference marked thereon. y

My invention consists of certain-vessels or casings, and pipes, constructed and arranged as fully described. hereafter, so that water in passing through. the c asin'gs will be thoroughly purified, land so that the impurities extracted from the water may be removed fron the casings without opening the latter. Y

In order to enable others skilled in the art. to make and use my invention, I will now proceedvto describe its construction and operation. On referenfce to the accompanying drawing,V which forms a partvof this specicatioy Figure 1 is a sectional elevation of my improved iilter; and

Figure 2, a sectional plan on the lin'e 1-2, iig. 1. v

A is a casing, the-bottom of `which' -is concave, and in the top of this casing is secured a smaller detachable casing or vessel, B'. The body of the vessel B consists of a series of vertical bars or blocks, a a, of glass, which are so arranged that their -side edges shall be almost in contact with each othert The bottom e of the vessel-B is conical, and to the top is fitted a dome-shaped cap or cover, I), through which extends aborizontal pipe, c, and a-v'ertical pipe, d. The lower part of the pipe d is almost in Contact with the lowest portion, z, ofthe bottom of the vessel B, and in the pipe near the top-of thc vessel are openingsfzl z', for a purpose described hereafter. Through the side ofthe casing'A project two inclined tnbes,fg, the former extending to the centre and almost touching vthe bottom of the casing, while the tube g is fianged at its lower end, as shown in iig. 1. The outer ends of the,

tubesf and d are closed, and the water to be purified is 'introduced' into the filter through the tube c. The heavier particles of matter carried with the water into the vessel B fall to the bottom of the latter, and collect at the lowest point, x, of the same, nearthe' end of the tube d. The iner particles are separated from the water as the latter passes between the glass bars-a a into the casing A, while any fatty matters, or particles lighter than thepwate'r, rise to the surface. of the latter near the top of' the vessel B. Such particles of matter `as Vmay remain in the water after itsv introduction into the casing A collect in the centre of the concave bottom of the latter, .while the cleansed water passes upwards into the tube g, andont of the latter in to any suitable recep tacle. When it is desired'to cleanse the filter, the tubes d andf are opened, when the sediment which has cold lected at the bottom of the casings will pass 'into the lower vends of the tubes, and the lighter ,particles 'at the surface of the wat'er'will pass through the openings 'il z' into the tubeu d, and both Iwill be discharged with the water as the latter passesfrom the filter. The bars or blocks c cmay be madevof metal, porcelain, or other suitable material, or a perforated vessel made entirely of metal or'porcelain may be substituted for a vessel, B, made as described. It will be seen' that by the arrangement of vessels and pipes above described the sediment which collects in eachvessel may be removed withoutvopeniig the filter, and that the water which passesthrough the latter is quickly and thoroughly purified. I I

I claim as my invention, and desire to secure by Letters Patent- 1. The perforated vessel B, and its pipes c and d, in combination with the casing A and its pipes f andy, the whole being constructed and arranged substantially as specified.

2. An inclined discharge pipe, arranged in respect to the concave bottom'of a lter, substantially asV and. for the purpose described. l I

3. The pipe d, with its openings z', in combination with a filter, substantially as and for the purpose set forth.

In testimony whereof I have-signed myname tothis spec'iicatienin the presence of two subscribing witnesses.

' i 'JUSTUS DOERING.

Witnesses: j

CHARLES E. FOSTER, J oHN Wnrrn.' 

